Abstract:
PURPOSE:To examine the effects of several matches per day on running performance and cardiovascular stress in referees during a national Rugby Sevens championship. METHODS:Seven referees, who refereed 3 matches/ day, were monitored by GPS during 21 matches. RESULTS:Referees' movement patterns were relatively stable from the 1st to the 2nd match, although a substantial decrease was observed in the 2nd match for maximal and average sprint distance. A substantial decrease in the number of sprints, maximal speed, walking, distance covered at medium intensity, total and >14 km/h distance covered per minute was observed in the 3rd match in comparison with the 2nd. Compared with the 1st match, in the 3rd game referees showed a substantial decrease in maximal and average sprint distance, total walking at medium intensity, distance covered >14 km/h, and high-intensity running distance. Referees exhibited a substantial decrease in average heart rate (HR), percentage of time at >70%HRmax, and percentage of time at >90%HRmax in the 2nd match compared with the 1st. Referees' HR responses were relatively stable from the 2nd to the 3rd match except for the HR zones of 71-80%HRmax and 81-90%HRmax and performance-efficiency index (Effindex). Substantial differences were observed in the 3rd match compared with the 1st in average HR, 81-90%HRmax, >90%HRmax, and Effindex. CONCLUSION:This study provides evidence of reduced overall running performance and pronounced reduction in high-intensity running performance during the last match in Rugby Sevens referees refereeing 3 matches in the same day.
journal_name
Int J Sports Physiol Performauthors
Suarez-Arrones L,Núñez J,Munguía-Izquierdo D,Portillo J,Mendez-Villanueva Adoi
10.1123/ijspp.8.5.496subject
Has Abstractpub_date
2013-09-01 00:00:00pages
496-501issue
5eissn
1555-0265issn
1555-0273pii
2012-0274journal_volume
8pub_type
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